1 /* Mach-O support for BFD.
2 Copyright (C) 1999-2023 Free Software Foundation, Inc.
3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
20
21 /* Define generic entry points here so that we don't need to duplicate the
22 defines in every target. But define once as this file may be included
23 several times. */
24 #ifndef MACH_O_TARGET_COMMON_DEFINED
25 #define MACH_O_TARGET_COMMON_DEFINED
26
27 #define bfd_mach_o_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
28 #define bfd_mach_o_bfd_print_private_bfd_data bfd_mach_o_bfd_print_private_bfd_data
29 #define bfd_mach_o_bfd_is_target_special_symbol _bfd_bool_bfd_asymbol_false
30 #define bfd_mach_o_bfd_is_local_label_name bfd_generic_is_local_label_name
31 #define bfd_mach_o_get_lineno _bfd_nosymbols_get_lineno
32 #define bfd_mach_o_find_inliner_info _bfd_nosymbols_find_inliner_info
33 #define bfd_mach_o_get_symbol_version_string _bfd_nosymbols_get_symbol_version_string
34 #define bfd_mach_o_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
35 #define bfd_mach_o_read_minisymbols _bfd_generic_read_minisymbols
36 #define bfd_mach_o_minisymbol_to_symbol _bfd_generic_minisymbol_to_symbol
37 #define bfd_mach_o_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
38 #define bfd_mach_o_bfd_relax_section bfd_generic_relax_section
39 #define bfd_mach_o_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
40 #define bfd_mach_o_bfd_link_add_symbols _bfd_generic_link_add_symbols
41 #define bfd_mach_o_bfd_link_just_syms _bfd_generic_link_just_syms
42 #define bfd_mach_o_bfd_copy_link_hash_symbol_type \
43 _bfd_generic_copy_link_hash_symbol_type
44 #define bfd_mach_o_bfd_final_link _bfd_generic_final_link
45 #define bfd_mach_o_bfd_link_split_section _bfd_generic_link_split_section
46 #define bfd_mach_o_bfd_link_check_relocs _bfd_generic_link_check_relocs
47 #define bfd_mach_o_bfd_merge_private_bfd_data _bfd_generic_bfd_merge_private_bfd_data
48 #define bfd_mach_o_bfd_set_private_flags bfd_mach_o_bfd_set_private_flags
49 #define bfd_mach_o_get_section_contents _bfd_generic_get_section_contents
50 #define bfd_mach_o_bfd_gc_sections bfd_generic_gc_sections
51 #define bfd_mach_o_bfd_lookup_section_flags bfd_generic_lookup_section_flags
52 #define bfd_mach_o_bfd_merge_sections bfd_generic_merge_sections
53 #define bfd_mach_o_bfd_is_group_section bfd_generic_is_group_section
54 #define bfd_mach_o_bfd_group_name bfd_generic_group_name
55 #define bfd_mach_o_bfd_discard_group bfd_generic_discard_group
56 #define bfd_mach_o_section_already_linked _bfd_generic_section_already_linked
57 #define bfd_mach_o_bfd_define_common_symbol bfd_generic_define_common_symbol
58 #define bfd_mach_o_bfd_link_hide_symbol _bfd_generic_link_hide_symbol
59 #define bfd_mach_o_bfd_define_start_stop bfd_generic_define_start_stop
60 #define bfd_mach_o_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
61 #define bfd_mach_o_core_file_matches_executable_p generic_core_file_matches_executable_p
62 #define bfd_mach_o_core_file_pid _bfd_nocore_core_file_pid
63 #define bfd_mach_o_set_reloc _bfd_generic_set_reloc
64
65 #define bfd_mach_o_get_dynamic_symtab_upper_bound bfd_mach_o_get_symtab_upper_bound
66 #define bfd_mach_o_canonicalize_dynamic_symtab bfd_mach_o_canonicalize_symtab
67
68 /* For Mach-O special archives. */
69 #define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr
70 #define bfd_mach_o_write_ar_hdr _bfd_noarchive_write_ar_hdr
71 #define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap
72 #define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table
73 #define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table
74 #define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname
75 #define bfd_mach_o_write_armap _bfd_noarchive_write_armap
76 #define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index
77 #define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp
78
79 #define TARGET_NAME_BACKEND XCONCAT2(TARGET_NAME,_backend)
80
81 #endif /* MACH_O_TARGET_COMMON_DEFINED */
82
83 #ifndef TARGET_NAME
84 #error TARGET_NAME must be defined
85 #endif /* TARGET_NAME */
86
87 #ifndef TARGET_STRING
88 #error TARGET_STRING must be defined
89 #endif /* TARGET_STRING */
90
91 #ifndef TARGET_ARCHITECTURE
92 #error TARGET_ARCHITECTURE must be defined
93 #endif /* TARGET_ARCHITECTURE */
94
95 #ifndef TARGET_BIG_ENDIAN
96 #error TARGET_BIG_ENDIAN must be defined
97 #endif /* TARGET_BIG_ENDIAN */
98
99 #ifndef TARGET_ARCHIVE
100 #error TARGET_ARCHIVE must be defined
101 #endif /* TARGET_ARCHIVE */
102
103 #ifndef TARGET_PAGESIZE
104 #error TARGET_PAGESIZE must be defined
105 #endif
106
107 static const bfd_mach_o_backend_data TARGET_NAME_BACKEND =
108 {
109 TARGET_ARCHITECTURE,
110 TARGET_PAGESIZE,
111 bfd_mach_o_canonicalize_one_reloc,
112 bfd_mach_o_swap_reloc_out,
113 bfd_mach_o_print_thread,
114 bfd_mach_o_tgt_seg_table,
115 bfd_mach_o_section_type_valid_for_tgt
116 };
117
118 const bfd_target TARGET_NAME =
119 {
120 TARGET_STRING, /* Name. */
121 bfd_target_mach_o_flavour,
122 #if TARGET_BIG_ENDIAN
123 BFD_ENDIAN_BIG, /* Target byte order. */
124 BFD_ENDIAN_BIG, /* Target headers byte order. */
125 #else
126 BFD_ENDIAN_LITTLE, /* Target byte order. */
127 BFD_ENDIAN_LITTLE, /* Target headers byte order. */
128 #endif
129 (HAS_RELOC | EXEC_P | /* Object flags. */
130 HAS_LINENO | HAS_DEBUG |
131 HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT | D_PAGED),
132 (SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
133 | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* Section flags. */
134 '_', /* symbol_leading_char. */
135 ' ', /* ar_pad_char. */
136 16, /* ar_max_namelen. */
137 TARGET_PRIORITY, /* match priority. */
138 TARGET_KEEP_UNUSED_SECTION_SYMBOLS, /* keep unused section symbols. */
139
140 #if TARGET_BIG_ENDIAN
141 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
142 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
143 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Data. */
144 bfd_getb64, bfd_getb_signed_64, bfd_putb64,
145 bfd_getb32, bfd_getb_signed_32, bfd_putb32,
146 bfd_getb16, bfd_getb_signed_16, bfd_putb16, /* Hdrs. */
147 #else
148 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
149 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
150 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
151 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
152 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
153 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
154 #endif /* TARGET_BIG_ENDIAN */
155
156 { /* bfd_check_format. */
157 #if TARGET_ARCHIVE
158 _bfd_dummy_target,
159 _bfd_dummy_target,
160 bfd_mach_o_archive_p,
161 _bfd_dummy_target,
162 #else
163 _bfd_dummy_target,
164 bfd_mach_o_object_p,
165 bfd_generic_archive_p,
166 bfd_mach_o_core_p
167 #endif
168 },
169 { /* bfd_set_format. */
170 _bfd_bool_bfd_false_error,
171 bfd_mach_o_mkobject,
172 _bfd_generic_mkarchive,
173 bfd_mach_o_mkobject,
174 },
175 { /* bfd_write_contents. */
176 _bfd_bool_bfd_false_error,
177 bfd_mach_o_write_contents,
178 _bfd_write_archive_contents,
179 bfd_mach_o_write_contents,
180 },
181
182 BFD_JUMP_TABLE_GENERIC (bfd_mach_o),
183 BFD_JUMP_TABLE_COPY (bfd_mach_o),
184 BFD_JUMP_TABLE_CORE (bfd_mach_o),
185 #if TARGET_ARCHIVE
186 BFD_JUMP_TABLE_ARCHIVE (bfd_mach_o),
187 #else
188 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_bsd44),
189 #endif
190 BFD_JUMP_TABLE_SYMBOLS (bfd_mach_o),
191 BFD_JUMP_TABLE_RELOCS (bfd_mach_o),
192 BFD_JUMP_TABLE_WRITE (bfd_mach_o),
193 BFD_JUMP_TABLE_LINK (bfd_mach_o),
194 BFD_JUMP_TABLE_DYNAMIC (bfd_mach_o),
195
196 /* Alternative endian target. */
197 NULL,
198
199 /* Back-end data. */
200 &TARGET_NAME_BACKEND
201 };
202